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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-00-984-9221 (300-40542-18)

NIIN: 00-984-9221
In stock
NSN: 5331-00-984-9221
FSC Code: 5331
MPN: 3004054218

5331-00-984-9217 (300-40542-14)

NIIN: 00-984-9217
In stock
NSN: 5331-00-984-9217
FSC Code: 5331
MPN: 3004054214

5331-00-984-9216 (300-40542-13)

NIIN: 00-984-9216
In stock
NSN: 5331-00-984-9216
FSC Code: 5331
MPN: 3004054213

5331-01-143-4232 (30035107-840)

NIIN: 01-143-4232
In stock
NSN: 5331-01-143-4232
FSC Code: 5331
MPN: 30035107840

5331-01-123-5585 (30032685-196)

NIIN: 01-123-5585
In stock
NSN: 5331-01-123-5585
FSC Code: 5331
MPN: 30032685196

5331-00-173-3085 (30-03-2072-1214)

NIIN: 00-173-3085
In stock
NSN: 5331-00-173-3085
FSC Code: 5331
MPN: 300320721214

5331-01-274-4326 (3002-K)

NIIN: 01-274-4326
In stock
NSN: 5331-01-274-4326
FSC Code: 5331
MPN: 3002K

5331-01-488-9678 (100-D-578)

NIIN: 01-488-9678
In stock
NSN: 5331-01-488-9678
FSC Code: 5331
MPN: 100D578

5331-01-511-2018 (100D360943)

NIIN: 01-511-2018
In stock
NSN: 5331-01-511-2018
FSC Code: 5331
MPN: 100D360943

5331-01-488-9681 (100-D-573)

NIIN: 01-488-9681
In stock
NSN: 5331-01-488-9681
FSC Code: 5331
MPN: 100D573

5331-01-268-1244 (30-024-004)

NIIN: 01-268-1244
In stock
NSN: 5331-01-268-1244
FSC Code: 5331
MPN: 30024004

5331-01-268-4038 (30-02-22)

NIIN: 01-268-4038
In stock
NSN: 5331-01-268-4038
FSC Code: 5331
MPN: 300222

5331-00-882-8874 (300218-1)

NIIN: 00-882-8874
In stock
NSN: 5331-00-882-8874
FSC Code: 5331
MPN: 3002181

5331-00-435-0438 (300204-495)

NIIN: 00-435-0438
In stock
NSN: 5331-00-435-0438
FSC Code: 5331
MPN: 300204495

5331-00-580-9717 (3002-003A)

NIIN: 00-580-9717
In stock
NSN: 5331-00-580-9717
FSC Code: 5331
MPN: 3002003A

5331-01-312-9937 (3001515X1)

NIIN: 01-312-9937
In stock
NSN: 5331-01-312-9937
FSC Code: 5331
MPN: 3001515X1

5331-01-368-9954 (598-516-1894231REVAI)

NIIN: 01-368-9954
In stock
NSN: 5331-01-368-9954
FSC Code: 5331
MPN: 5985161894231REVAI

5331-01-518-0530 (100A12-4)

NIIN: 01-518-0530
In stock
NSN: 5331-01-518-0530
FSC Code: 5331
MPN: 100A124

5331-01-317-9483 (300067-1)

NIIN: 01-317-9483
In stock
NSN: 5331-01-317-9483
FSC Code: 5331
MPN: 3000671

5331-01-266-3279 (300067-2)

NIIN: 01-266-3279
In stock
NSN: 5331-01-266-3279
FSC Code: 5331
MPN: 3000672

5331-01-266-3280 (300066-1)

NIIN: 01-266-3280
In stock
NSN: 5331-01-266-3280
FSC Code: 5331
MPN: 3000661

5331-00-106-1918 (3000-61)

NIIN: 00-106-1918
In stock
NSN: 5331-00-106-1918
FSC Code: 5331
MPN: 300061

5331-01-363-1606 (100347-9000-028)

NIIN: 01-363-1606
In stock
NSN: 5331-01-363-1606
FSC Code: 5331
MPN: 1003479000028

5331-00-599-0698 (3000-202ALT1PC36)

NIIN: 00-599-0698
In stock
NSN: 5331-00-599-0698
FSC Code: 5331
MPN: 3000202ALT1PC36

5331-01-434-3402 (10092-1106)

NIIN: 01-434-3402
In stock
NSN: 5331-01-434-3402
FSC Code: 5331
MPN: 100921106

5331-99-650-9208 (ORINGIMP01047X116NBRL)

NIIN: 99-650-9208
In stock
NSN: 5331-99-650-9208
FSC Code: 5331
MPN: ORINGIMP01047X116NBRL

5331-99-453-5201 (100-910-1109ZZ)

NIIN: 99-453-5201
In stock
NSN: 5331-99-453-5201
FSC Code: 5331
MPN: 1009101109ZZ

5331-01-387-2248 (100-906-2397)

NIIN: 01-387-2248
In stock
NSN: 5331-01-387-2248
FSC Code: 5331
MPN: 1009062397

5331-99-730-4544 (ASCC17-27-906)

NIIN: 99-730-4544
In stock
NSN: 5331-99-730-4544
FSC Code: 5331
MPN: ASCC1727906

5331-01-552-9679 (1009060-1)

NIIN: 01-552-9679
In stock
NSN: 5331-01-552-9679
FSC Code: 5331
MPN: 10090601

5331-99-628-9553 (100-903-8801)

NIIN: 99-628-9553
In stock
NSN: 5331-99-628-9553
FSC Code: 5331
MPN: 1009038801

5331-01-191-0278 (300-001-8839-02)

NIIN: 01-191-0278
In stock
NSN: 5331-01-191-0278
FSC Code: 5331
MPN: 300001883902

5331-01-506-7138 (100-8774)

NIIN: 01-506-7138
In stock
NSN: 5331-01-506-7138
FSC Code: 5331
MPN: 1008774

5331-01-306-0124 (3.487X.103-60BN)

NIIN: 01-306-0124
In stock
NSN: 5331-01-306-0124
FSC Code: 5331
MPN: 3487X10360BN

5331-01-237-4187 (3.937X0.209IN70BN)

NIIN: 01-237-4187
In stock
NSN: 5331-01-237-4187
FSC Code: 5331
MPN: 3937X0209IN70BN

5331-00-045-9714 (3.61411DX0.070W)

NIIN: 00-045-9714
In stock
NSN: 5331-00-045-9714
FSC Code: 5331
MPN: 361411DX0070W

5331-00-599-0750 (2Z8273-12)

NIIN: 00-599-0750
In stock
NSN: 5331-00-599-0750
FSC Code: 5331
MPN: 2Z827312

5331-99-940-4574 (VA-49-0061-837)

NIIN: 99-940-4574
In stock
NSN: 5331-99-940-4574
FSC Code: 5331
MPN: VA490061837

5331-01-084-4571 (2WX33)

NIIN: 01-084-4571
In stock
NSN: 5331-01-084-4571
FSC Code: 5331
MPN: 2WX33

5331-00-599-2355 (2WC75)

NIIN: 00-599-2355
In stock
NSN: 5331-00-599-2355
FSC Code: 5331
MPN: 2WC75

5331-00-715-6506 (2WC284)

NIIN: 00-715-6506
In stock
NSN: 5331-00-715-6506
FSC Code: 5331
MPN: 2WC284

5331-99-708-8274 (VA-49-0042-802)

NIIN: 99-708-8274
In stock
NSN: 5331-99-708-8274
FSC Code: 5331
MPN: VA490042802

5331-01-209-8008 (2W2073)

NIIN: 01-209-8008
In stock
NSN: 5331-01-209-8008
FSC Code: 5331
MPN: 2W2073

5331-01-209-8009 (2W287)

NIIN: 01-209-8009
In stock
NSN: 5331-01-209-8009
FSC Code: 5331
MPN: 2W287

5331-01-207-7351 (2W2072)

NIIN: 01-207-7351
In stock
NSN: 5331-01-207-7351
FSC Code: 5331
MPN: 2W2072

5331-01-489-5702 (10-0716)

NIIN: 01-489-5702
In stock
NSN: 5331-01-489-5702
FSC Code: 5331
MPN: 100716

5331-00-557-8434 (2S6498)

NIIN: 00-557-8434
In stock
NSN: 5331-00-557-8434
FSC Code: 5331
MPN: 2S6498

5331-00-999-3173 (2R98)

NIIN: 00-999-3173
In stock
NSN: 5331-00-999-3173
FSC Code: 5331
MPN: 2R98